Radiator cap



I. H. STANT RADIATOR CAP Feb. 24, 1931.

Filed Nov. 28, 1928 Arrow":

5 amplified in the accompanyin preferred embodiment of this invent1on,'

. Patented Feb. 24, 1931 UNITED v STATES PATENT OFFICE.

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Application fled November as, 1928. serial Io. 322,494.

This invention relates to radiator caps. It is an object oi my inventionto provide a radiator cap with a hinged sealing cap, which is locked inclose engagement with the filler spout by means of a relatively movablering lock member.

It is an object of this invention to provide a radiator cap in which thearts are thus rotated in relation to each 0t or for the purpose oflocking the cap in closed relation with the part to which the cap isattached. The

radiator sealing cap may be rotated in regard to the ring, or the rinmay be made' to rotate in regard to the sealmg cap. In the presentinstance, however, it is shown that the ring is rotated regard to thesealing.

it is also an object of this invention, in connection with a device ofthis type, to makea '20 radiator cap in which-the parts are few and sorelated that when the cap is in locked position the water is securelyprevented from escaping.

For the purpose of illustration there is exdrawing a which is used onlyby way of illustration. Referring to the drawings: Figure 1 is ahorizontal section on the 7 line 11 of Figure 4, showing the parts inunlocked position.

Figure 2 is a similar view showing the 'parts in locked position.

Figure 3-is a plan view of the stationary 5 collar. v V Figure 4 is asection on the line 4-4 of Figure 1. 4 Figure 5 is a section on the line5-5 of Figure 2.. r

Figure 6 is a side elevation of the stationary v collar. Figure 7 is apartial sectional view of the locking ring.

This device is composed essentially of four parts, including a fillerspout to which it is attached. The filler spout is indicated by thenunferal 1. The, numeral 2 is used to designate a stationary collar,while 3 is a sealing cap and 4 is the locking ring. These constitute thefour parts of this device.

The parts 1 and 2 are held in interlocking relation with each other bymeans of threads 5. The stationary collar is screw threaded on the upperend of the stationary spout'and forms the entrance to the stationaryspout.

On diametrically opposite sides of the sta- V tionary oollar are twovertical grooves 6, which end in two circumferentially arranged slots 7.Extending around the outer circumference of the stationary collar andjust below the slots 7 is a groove 8, in which is located a snap rinwhich engages a corresponding groove ound in the locking ring. This snapring is for the purpose of holding the locking mug in proper position onthe stationary collar for rotation for engagement with the lugs on thecover. a

On the upper surface of the stationary collar is a circumferentialgroove 9 which re- 'ceives and carries thereina gasket 10. This gasketis to be engaged by the diaphragm from one edge of the stationary collarare two spaced ear members 11. These members receive between them. thecorresponding members on the cover to form a hinged connection betweenthe two. j

p The part of the stationary collar from which the ears 11 project issomewhat enlarged by means ofan outwardly projecting flange 11. The lugon the cover adapted to fit between the spaced ears 11 is indicated bythe numeral 12. On the cover, about ninety degrees from the lug 12, aretwo diametrica ly oppositely disposed outwardly turned hooks 13, forminggrooves 14, which receive suitable projections on the locking ring tolock the cover in close sealing en- Extending inwardly from the centerof the cover is a projection 15 wliich is ada ted to carry and support adiaphragm mem er 16. This diaphragm is in 'close,engagement with thevprojection 15 and is adapted, when the snap ring first to contract andthen to expand back again into the groove 18 in the locking ring,leaving about one-half of the snap ring in groove 18 and about one-halfin grove 8,

thereby holding the stationary collar and the lockingering together innon-movable, vertical relation to each other but in such a way that thelocking ring can easily rotate in regard to the collar.

The lower part of the locking ring is restricted, as indicated by thenumeral 17, so that this part is made to have a diameter practically thesame as that of the outer diameter of thestationary spout, while thediameter 19 of the upper part is similar to the outer diameter of thestationary collar. Instead of the foregoing snap ring, any suitableequivalents therefor might be used.

On the extreme upper part of the ring there extends inwardly therefromtwo diametrically opposed projections 20. When the cover is brought downinto engagement with the stationary collar the outwardly turned hooks 13enter the slots 7 but in that part of the slot away from the verticalgroove 6, so that when the cover is pressed down and the locking ringrotated the projections 20 will come into engagement 'with the grooves14 in the outwardly turned hooks 13 to securely lock the cover insealing engagement with the stationary collar.

While the parts here shown call for a rotatable locking ring, yet thering may be stationary and the other parts rotatable. The essentialfeature is that the parts are I movable in relation to each otherregardless of which one of them is stationary. The interengaging partson the stationary collar and the locking ring may be so'constructed thata rotation of'one in relation to the other tends to firmly close thecover upon the stationary collar and compress the diaphragm upon thegasket in the stationary collar.

Thenumeral 21 is used to designate the knurled part of the ring 4 thatis to be gripped by the hand in operating this ring for the purpose ofsecurely bringing the cover in engagement with the collar.

Having thus fully described my invention,

what I claim is new and desire to secure by Letters Patent, is:

1. In a radiator cap, in combination with a filler spout, a collar onsaid spout, a cover engaging said collar to close said spout, and meansadapted to engage the collar and the cover to securely close the spout,said means being freely rotatable without affecting the relation of thespout and the cover. I

2. In a radiator cap, in combination with 'a filler spout, a collar onsaid spout, a cover pivoted to said collar and adapted to close saidspout, and ring means adapted to engage the collar and cover to securelyclose the spout, said ring being freely rotatable without affecting thepivotal relation of the cover.

3. In a radiator cap, in combination with a filler spout, a collar onsaid spout, said col lar having vertical slots therein, a cover havingcircumferentially grooved studs thereon, said studs adapted to fit insaid slots, and means movable in said slots to engage the grooves insaid studs to hold the cover in close engagement with the collar.

4. In a radiator cap, in combination with a filler spout, a collar onsaid s out, said collar having oppositely dispose grooves and slotsthereon, a cover having oppositely disposed circumferentially groovedstuds thereon, said studs being adapted to fit in said slots, and meansengaging said collar and having parts adapted to move in said grooves,and slots on said collar to engage the grooves in said studs to lock thecover to the collar to close the spou 5. In a radiator ca a collarhaving a groove therein, a cap or said collar, a locking ringsurrounding said collar adapted to engage said cap and lock it on thecollar, said locking ring having a groove facing the firstnamed grooves,and means'in said grooves to hold the locking ring on said collar.

6. In a radiator cap, a collar having a groove therein, a cap for saidcollar, a locking ring surrounding said collar adapted to engage saidcap and lock it on the collar, said locking ring having a groove facingthe firstnamed grooves, and a snap ring in said grooves to hold thelocking ring on the collar.

7 In a radiator cap, an annular collar having a groove in the peripherythereof, a cap adapted to fit over said annular collar, a

locking ring surrounding said collar adapted to engage said cap and lockit on the collar,

said locking ring having a groove facing the first-named groove, andmeans in said grooves to hold the locking ring on the collar.

8. In a radiator cap, an annular collar having a groove in the peripherythereof, a cap adapted to fit over said annular collar, a locking ringsurrounding said collar adapted to engage said cap and lock it on thecollar, said locking ring having a groove facing the firstnamed groove,and a snap ring in said grooves to hold the locking ring on the collar.

In testimony whereof, I aflix my signature.

. IVAN H. STANT.

